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非常珍貴， 非常需要， 渴求...

at a premium的音標(biāo)：at a premium的英式發(fā)音音標(biāo)為：[?t ? 'pri:mi?m]at a premium的美式發(fā)音音標(biāo)為：[?t e 'primi?m]...

He eventually sold the shares back to the bank at a premium.他最后以高價(jià)把股票回售給銀行。Skilled workers are at a premium in this town.熟練的技工在這個(gè)城市里很受青睞.He worked mainly in New York City where living space is notoriously at a premium.他主...